0.35 0.45mm Ral9016 White PPGI PPGL Factory Prepainted Galvanized Steel Coil

Product Description

 
PPGI PPGL RAL Color Coated Prepainted Galvanized Steel Coil

Product Parameters

Color-coated steel coils are a core material for steel structure factories, roofs, walls, fencing, external wall insulation, and decorative panels.

Many customers face numerous headaches when purchasing them: fading and discoloration after six months, cracking and paint peeling upon bending, powdering from sun exposure, peeling and rusting during the rainy season, and severe color variations across the entire sheet.

Most low-priced color-coated coils on the market suffer from inferior substrate, insufficient coating, substandard coating work, thin single coats, lack of primer, and inadequate curing. While seemingly cheaper per unit, they result in high rework rates, short lifespans, and doubled overall costs.

Our company adheres to high-quality processes and avoids substandard products.
We use premium aluminized zinc/galvanized steel substrates and employ industry-standard double-layer roller coating with primer and topcoat, followed by high-temperature constant-temperature curing.

This results in a dense coating with extremely strong adhesion. Our coils offer advantages such as resistance to sun exposure, salt spray, bending, paint peeling, colorfastness, waterproofing, and corrosion resistance. Suitable for both indoor and outdoor applications, our high-weather-resistant outdoor models offer long-lasting color retention.

Product name	Pre-painted Galvanized Steel Coil
Base material	Galvanized / Galvalume
Thickness	0.12~1.5 mm
Width	600~1500 mm
Coil ID	508 mm /610 mm
Coating	Top coating 15+5um, back paint 7+3um, or customized
Coil weight	3-5 tons
Colors	RAL Colors or as sample
Material	SGCC, DX51D, SGCH
Techinque	Cold Rolled
Surface treatment	Top paint: FVDF, HDP, SMP, PE, PU Prime paint: polyurethane, epoxy, PE Back paint: epoxy, modified polyester
Standard	ASTM, JIS, EN
Certificate	ISO, CE, SGS
Payment terms	30% T/T + 70% T/T balance within 5 days after B/L copy, 30% T/T + 70% Irrevocable L/C at sight
Delivery times	Delivered within 30 days after the receipt of deposit
Package	Tied up with steel strips and wrapped with water proof paper
Loading port	Qingdao/ Tianjin
Application	Widely used in roofing sheet, window-shades, car ceiling, the shell of the car, air conditioner, outer shell of water machine, steel structure etc.

 

Product Description

1. Top paint film: RPE, SMP, HDP, PVDF, Other paints.

Function: It functions as a sunlight proof cover,especially prevent the destroy by the ultraviolet rays.When the top paint film reaches a certain thickness, it forms a compact cover,and reduce the water and oxygen permeability.

2. Primer paint film: Polyurethane, Epoxy, PE.

Function: Strengthen the adhesiveness between the top paint film and the basemetal. Even permeable water happens, the top paint film will not peel off.There is corrosion inhibitor which is corrosion resistance.Polyurethane is necessary for higher processing flexibility and weather resistance requirements.

3. Passivation layer Function: Increase the adhesion between the metallic layer and coating film. Extend life span also.

4. Metallic coating Function:The metallic coating provides the fundamental protection for the steel.The popular coating metal are galvanized, galvalumed and other alloyed metals.
 

5. Substrate steel Cold rolled steel is usually used as substrate, it decides the mechanical properties and the steel shape and flatness.
 

6. Back paint film Epoxy, Modified PE. Back paint can sustain color in good condition and has good binding.

 

 

Our Advantages

1. Substrate Difference:No recycled or substandard products, eliminating rust and deformation at the source.

Our products: All use brand new, high-quality aluminized zinc/galvanized substrates. The coating is sufficient and uniform, the surface is flat and free of hidden defects, and the toughness is stable. They are not easily deformed or rusted during forming, bending, and edge locking, doubling the lifespan of the sheets.

2. Coating Process Difference: Double-layer full coating, completely solving common problems of paint peeling and cracking.

Our products: Strictly adhere to a double-layer roller coating process of primer + topcoat. The primer enhances adhesion and seals the substrate for corrosion protection, while the topcoat ensures weather resistance and color retention. The entire process involves constant temperature and high-temperature curing, resulting in extremely strong coating penetration and bonding. They do not crack, peel, or flake when bent at 180° angles, and there is no chipping at drilling or cutting points, maximizing adaptability for further processing.

3. Weather Resistance and Color Retention: No short-term color change, consistent color even outdoors over the long term.

Our products use brand-specific weather-resistant coatings, with corresponding coating systems matched to different scenarios. Highly weather-resistant, fluorocarbon-grade products rely on a high-bond-energy molecular structure, exhibiting extremely strong resistance to ultraviolet rays and aging. Even after years of outdoor exposure, the color remains uniform and glossy, without color change, fading, or chalking, ensuring zero pressure on project acceptance.

4. Surface Texture Difference: No color difference, no flaws, higher-grade finished product.

Our products utilize precision CNC roller coating technology, resulting in a delicate, smooth, and uniformly glossy surface, free of particles and flaws. The entire roll maintains consistent color and even color distribution, creating a beautiful and sophisticated overall appearance after application. Suitable for high-end factories, stadiums, and exterior wall decoration projects.

5. After-sales Difference: No haggling, genuine warranty, no shirking of responsibility.

Our products: Craftsmanship, materials, and coating parameters are transparent and verifiable. The stated weather resistance lifespan is accurate and valid. For non-human-caused issues such as paint peeling, fading, or chalking, we provide full after-sales support, unconditional returns and exchanges, and zero-risk procurement.

 

V. Our Core Product Features

1. No Paint Cracking During Bending: Double-layer coating with strong adhesion ensures no delamination or paint chipping during forming, bending, edge locking, and punching.

2. No Fading Under Outdoor Sunlight: Special weather-resistant coating resists UV rays and aging, maintaining color for many years without discoloration or chalking.

3. Sufficient Base Material: Brand new, genuine base material with accurate thickness and plating; no skimping, recycled materials, or defective products.

4. No Color Difference or Defects in the Roll: Smooth and uniform surface, free of particles, orange peel, and uneven coloring, maximizing aesthetic appeal in engineering projects.

5. Precise Adaptability for Multiple Scenarios: Complete range of standard, high-weather-resistant, and fluorocarbon products, covering indoor and outdoor, general and high-end scenarios.

6. In Stock and Fast Delivery: Thousands of tons of in-stock inventory; standard colors and specifications ship on the same day; customized color matching and expedited delivery.

 

Product Application

 

Company Profile

ZK Steel Group is a large multinational steel resource group based in Shandong, China. Founded in 2010 and exporting worldwide since 2016, the Group achieves an annual turnover of RMB 5 billion, with each branch maintaining a stable monthly export volume of 20,000-40,000 tons - ranking among the leading steel exporters in Shandong.

FOUNDED	2010	EXPORT SINCE	2016
ANNUAL TURNOVER	RMB 5 Billion	MONTHLY EXPORT / BRANCH	20,000-40,000 tons
COUNTRIES SERVED	50+	HEADQUARTERS	Shandong, China

Global Industrial Layout  

• Domestic network - four branch offices in Guangzhou, Hainan, Suzhou & Yiwu, plus a self-owned modular house factory in Dezhou.
• Overseas presence - self-built steel pipe production bases in Egypt & Syria; direct offices in Peru & Iran, covering the Middle East and South America.

Full Self-owned Production Capacity  

• Self-production of galvanized (GI) and PPGI / PPGL steel coils.
• Stainless steel deep processing - precision cutting, film lamination & surface treatment.
• Customized steel structures & modular houses - integrated design and manufacturing.

First-tier Authorized Agent of Top Steel Mills 

• Direct supply from Nippon Steel, Shougang, Rizhao Steel & Laigang (full product range).
• Core products: HRC, CRC, stainless steel, steel pipes, H-beams & steel profiles.
• Special materials - tool steel, silicon steel, alloy steel & complete supporting accessories.

Core Positioning 
As a full-industry-chain steel resource integration specialist, We connects direct mill sourcing, self-owned manufacturing, multi-category deep processing, nationwide warehousing, local overseas production and global project installation. One partner, one-stop solutions - from material selection and customized processing to bulk export and on-site installation - saving customers time on communication, comparison, logistics and after-sales, while leveraging group-scale advantages for stable quality, punctual delivery and competitive pricing.
Stable steel solutions for clients in more than 50 countries - for over a decade.

Quality Control

 

Packaging & Shipping

 

1. packing: 3 layers of packing. Inside is craft paper, middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve.

2. Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.

3. Trade terms: FOB/CIF/CFR.

4. Shipping port: Qingdao/Tianjin/Shanghai.

5. Shipment:
Quantity<100 tons: container
                    a. Length of goods<6m, loaded in 20GP Container;
                    b. Length of goods<12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside:5898*2352*2393mm)
               Size of 40GP Container (inside:12032*2352*2393mm)
               Size of 40HQ Container (inside:12032*2352*2698mm)
Quantity>100 tons: bulk ship

6. Delivery time: Normal size: 3-7 days send from warehouse directly. Special size:15-30 days custom made for you.
 

FAQ
1. Who are we?
We are based in Shandong, China, start from 2016, sell to South America(20.00%), Africa(20.00%), Southeast Asia(15.00%), Central America(10.00%), North America(5.00%), Oceania(5.00%), Mid East(5.00%), Eastern Asia(5.00%), Western Europe(5.00%), South Asia(5.00%), Domestic Market(5.00%). There are total about 11-50 people in our office.

2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. What can you buy from us?
Hot Rolled Steel, Corrugated Roofing Sheet, Galvanized Steel Coil, PPGI, Steel Pipe, Stainless Steel

4. What services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA;
Accepted Payment Currency:USD, EUR, JPY, HKD, CAD;
Accepted Payment Type: T/T, L/C, MoneyGram, Credit Card, PayPal, Western Union, Cash;
Language Spoken:English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian.